1. Who am I, O Lord? (18-21)

David was king, but he was not proud. He knew himself because he knew God. He knew that he and his family were nothing special, but God, by his grace, had done a great thing for him, and was now promising to do greater things.

2. How great you are, O God! (22-29)

God did a great and awesome thing by redeeming Israel from Egypt and driving out the Canaanite nations and their gods from the land to give it to his people. This made God's people Israel special. God's word is trustworthy. David believed God's promises. God promised that he would bless David's house to continue before him forever. God has kept that promise by sending Jesus to be the eternal King.